f0fd4957cd45f766244bac22e0571c4cc155360ee2a476657c1bcb811df50043

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
01/06/2024, 08:25

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General

Target

2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe
Size

46KB
MD5

5d5008fe06603752e27c93cf7860d982
SHA1

34884431a600f265806ef8b23b7929f4227ebf9f
SHA256

f0fd4957cd45f766244bac22e0571c4cc155360ee2a476657c1bcb811df50043
SHA512

b3b344d42a9bcd1bead4e80093aee84ac11b3b16fa388c00c4aea203e4e93dce34d2c3a61d259eb345f8e33428c70ca80b919958f10b6e3e95fdce36072ded00
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqc:bc/y2lkF0+Beqc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2584	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1768	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1768	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe
2584	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 2584	1768	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	28
PID 1768 wrote to memory of 2584	1768	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	28
PID 1768 wrote to memory of 2584	1768	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	28
PID 1768 wrote to memory of 2584	1768	2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-01_5d5008fe06603752e27c93cf7860d982_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
46KB

MD5
dd9c1eeb1f7372723c756eb26493d22a

SHA1
e6081ccd907579531fa59023071e37ce3a128a9a

SHA256
2abbe100b3c0068eb3ca3ceba3319d9a1197d41652279ff291f0a8022166c0f4

SHA512
14874d328289383860016643ab6e690dfb7d9ed9fe6f835b65fb438f4dba6121ff4506a173b215e7d4be495c568c34e8e35a1e360a2cf1e18addcdd410886d25

Download Submit
memory/1768-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1768-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1768-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2584-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download